Regular black holes from proper-time flow in quantum gravity and their quasinormal modes, shadow and Hawking radiation

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F47813059%3A19630%2F25%3AA0000448" target="_blank" >RIV/47813059:19630/25:A0000448 - isvavai.cz</a>

Výsledek na webu

<a href="https://iopscience.iop.org/article/10.1088/1475-7516/2025/12/042" target="_blank" >https://iopscience.iop.org/article/10.1088/1475-7516/2025/12/042</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1088/1475-7516/2025/12/042" target="_blank" >10.1088/1475-7516/2025/12/042</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Regular black holes from proper-time flow in quantum gravity and their quasinormal modes, shadow and Hawking radiation

Popis výsledku v původním jazyce

We derive a class of regular black holes from the proper-time renormalization group approach to asymptotically safe gravity. A central challenge is the robustness of physical predictions to the regularization scheme. We address this by computing key observables for our quantum-corrected black holes, which are non-singular and asymptotically Schwarzschild. We calculate the quasinormal mode spectrum, finding significant deviations from the classical case. The Hawking radiation spectrum is strongly suppressed, implying a slower evaporation rate and relaxed constraints on primordial black holes as dark matter. Shadows and ISCO radii remain consistent with observations. Our results demonstrate that the singularity resolution and its primary observational implications are robust physical outcomes.

Název v anglickém jazyce

Regular black holes from proper-time flow in quantum gravity and their quasinormal modes, shadow and Hawking radiation

Popis výsledku anglicky

We derive a class of regular black holes from the proper-time renormalization group approach to asymptotically safe gravity. A central challenge is the robustness of physical predictions to the regularization scheme. We address this by computing key observables for our quantum-corrected black holes, which are non-singular and asymptotically Schwarzschild. We calculate the quasinormal mode spectrum, finding significant deviations from the classical case. The Hawking radiation spectrum is strongly suppressed, implying a slower evaporation rate and relaxed constraints on primordial black holes as dark matter. Shadows and ISCO radii remain consistent with observations. Our results demonstrate that the singularity resolution and its primary observational implications are robust physical outcomes.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

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OECD FORD obor

10308 - Astronomy (including astrophysics,space science)

Projekt

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Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of Cosmology and Astroparticle Physics

ISSN

1475-7516

e-ISSN

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Svazek periodika

2025

Číslo periodika v rámci svazku

12

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

38

Strana od-do

„042-1“-„042-38“

Kód UT WoS článku

001647828600008

EID výsledku v databázi Scopus

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